Electrical measuring instrument



FIG. 1 is a front elevational view of an electrical measuring instrument showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top rear, left side perspective rear view thereof;

FIG. 4 is a right side elevational view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for an electrical measuring instrument, as shown and described. 